Low frequency inertia balanced dipole hydrophone

Details Low frequency inertia balanced dipole hydrophone Low frequency inertia balanced dipole hydrophone

1978-12-06

1980-06-17

Tudor, Harold J.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

310337, 367174, H04B 1300

Patent

active

042087376

ABSTRACT:
A dipole hydrophone having a differential pressure sensing unit, for example, a multi-laminar bender disc, within a liquid filled housing. Two liquid filled acoustic waveguides form extensions of the housing and include pressure sensing ports. A mass of predetermined value is connected to the sensing unit and with a predetermined separation between sensing ports, the mass value is chosen so that the sensing unit response to acceleration is very nearly equal and opposite to its response due to the inertial mass of the liquid.

REFERENCES:
patent: 1432945 (1922-10-01), Atwood
patent: 2404784 (1946-07-01), Bostwick
patent: 3187300 (1965-01-01), Brate
patent: 3727084 (1973-04-01), Epstein
patent: 4001765 (1977-01-01), Sims

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